Website

Professor and Director

Center for Computational Fluid Dynamics

**Unit**: College of Science

**Department**: School of Physics, Astronomy, and Computational Sciences

**Hubs**: International and National Security

**Phone**: 703-993-4075

**Location**: MSN: 6A2, 340 Research Hall, Fairfax, Va. 22030

**Office Hours**: Email me

#### Recent Publications

R. Löhner and J.D. Baum - An Assessment of Architecturally Appealing, Semi-Open Shock Mitigation Devices; Engineering Computations 29, 1, 19-30 (2012).

R. Löhner - Improved Error and Work Estimates for High Order Elements; AIAA-12-0291 (2012).

R. Löhner, F.F. Camelli, J.D. Baum and A. Corrigan - Large-Scale Blast Calculations on GPU Clusters; AIAA-12-0565 (2012).

S. Torbert and R. Löhner - Checkpointing Schemes for Adjoint Methods and Strongly Unsteady Flow; AIAA-12-0572 (2012).

#### Courses Taught

Computational Fluid Dynamics I,II

Seminar on Computational Fluid Dynamics

Foundations of Computational Sciences

[youtube]http://youtu.be/C0A54PlnDpw[/youtube]

**Video produced by George Mason University** in 2008 on the Center for Computational Fluid Dynamics

**Researchers Unveil New Blood Flow Simulation System**

Researchers at George Mason University’s Center for Computational Fluid Dynamics recently unveiled a first of its kind patient-specific blood flow simulation system that was assembled by Phillips Medical Systems using software components developed at Mason. The cutting-edge technology has the potential to improve diagnostics and treatments for millions of Americans who are affected by brain aneurysms — saclike bulges in the blood vessels — each year. A multi-disciplinary team comprised of Mason’s computational scientists, Inova Fairfax Hospital’s neuroradiologists, and Phillips Medical System’s engineers, produced the application to provide neurologists with hemodynamic (blood flow) information that is believed to be of fundamental importance for understanding the evolution and rupture process of brain aneurysms.

Diplom Ingenieur, Maschinenbau, TU Braunschweig (1982)

Ph.D., Civil Engineering, University of Wales, Swansea (1985)

Notable Achievements and Awards

Achievements

The following is a list of notable awards received by members of the team.

November 2010: Prof. Rainald Löhner reveived the Distinguished International Career Award from the Argentine Association of Computational Mechanics (AMCA)

May 2008: Prof. Rainald Löhner was elected fellow of the International Association of Computational Mechanics

Jr engineering. The 15th annual Conference counted participants from 47 nations, sitting in on 93 sessions and 3 plenary sessions. The paper was selected best paper among the 471 peer-reviewed papers presented.

January 2006: Prof. Rainald Löhner was recognized as a Distinguished Professor 'for his substantive and innovative contributions to the field of computational fluid dynamics'. The ceremony took place at GMU on January 24, and was attended by GMU's president and provost, the deans of several of GMU's schools, many scientitics active in CFD, colleagues, friends and family. Pictures from the event may be seen (here)December 2005:

Prof. Rainald Löhner was named Honorary Professor of the University of Wales at Swansea. This recognition should serve as a basis for future collaboration of the CFD group at GMU with Swansea's CFD/CEM/CSD groups.March 2005: Prof. Rainald Löhner was named Advisory Professor of Shanghai Jiao Tong University, one of the top five universities in China and the foremost university in the field of Naval Architecture and Ocean Engineering. This award will enable him and the CFD group at GMU to collaborate with Shanghai Jiao Tong University (SJTU).

November 1999: Prof. Rainald Löhner received the Computational Mechanics Achievements Award from the Computational Mechanics Division of the Japan Society of Mechanical Engineers `for his distinguished achievements in the field of computational mechanics'. The award ceremony took place during the annual meeting of the Computational Mechanics Division of JSME in Matsuyama, on the island of Shikoku.

Diplom Ingenieur, Maschinenbau, TU Braunschweig (1982)

Ph.D., Civil Engineering, University of Wales, Swansea (1985)

All aspects of field solvers based on unstructured grids for compressible and incompressible flows, electromagnetic and acoustic wave propagation, heat and mass transfer and fluid-structure interaction: pre-processing (handling large dirty-CAD data sets, error-free setup of complex geometries, minimal input computing), solvers (high resolution schemes, optimal combination of schemes, preconditioners, adjoints), efficient use of supercomputing hardware (parallel computing, field solvers on graphic cards) , post-processing (optimal ways of seeing, data reduction, data mining), as well as optimal shape and process design. Strategic application areas include: blast-structure interaction, dispersion in urban areas, free-surface hydrodynamics, haemodynamics (bloodflow) and optimal shape and process design.

**Latest and Greatest**

R. Löhner and J.D. Baum - An Assessment of Architecturally Appealing, Semi-Open Shock Mitigation Devices; Engineering Computations 29, 1, 19-30 (2012).

R. Löhner - Improved Error and Work Estimates for High Order Elements; AIAA-12-0291 (2012).

R. Löhner, F.F. Camelli, J.D. Baum and A. Corrigan - Large-Scale Blast Calculations on GPU Clusters; AIAA-12-0565 (2012).

S. Torbert and R. Löhner - Checkpointing Schemes for Adjoint Methods and Strongly Unsteady Flow; AIAA-12-0572 (2012).

**Unstructured Grid Generation**

J. Cabello, R. Löhner and O.-P. Jacquotte - A Variational Method for the Optimization of Two- and Three-Dimensional Unstructured Meshes; AIAA-92-0450 (1992).

R. Löhner - Matching Semi-Structured and Unstructured Grids for Navier-Stokes Calculations; AIAA-93-3348-CP (1993).

R. Löhner - Recent Progress in Tetrahedral Grid Generation via the Advancing Front Technique; paper presented at the 3rd International Meshing Roundtable, Albuquerque, NM, October (1994).

J. Cabello, R. Löhner and O.P. Jacquotte - Recent Improvements of a Variational Method For the Optimization of Directionally Stretched Elements - Proc.4th Int.Conf.on Numerical Grid Generation in CFD and Related Fields, Swansea, UK, April 6-8 (1994).

A. Shostko and R. Löhner - Three-Dimensional Parallel Unstructured Grid Generation; Int.J.Num.Meth.Eng. 38, 905-925 (1995).

A. Shostko and R. Löhner - Parallel 3-D H-Refinement; AIAA-95-1662-CP (1995).

R. Löhner - Extending the Range of Applicability and Automation of the Advancing Front Grid Generation Technique; AIAA-96-0033 (1996).

R. Löhner - Regridding Surface Triangulations; J.Comp.Phys. 126, 1-10 (1996).

R. Löhner - Extensions and Improvements of the Advancing Front Grid Generation Technique; Comm.Num.Meth.Eng. 12, 683-702 (1996).

R. Löhner - Automatic Unstructured Grid Generators; Finite Elements in Analysis and Design 25, 111-134 (1997).

R. Löhner and E. Onate - An Advancing Point Grid Generation Technique; Comm.Num.Meth.Eng.\ 14, 1097-1108 (1998).

R. Löhner - Generation of Unstructured Grids Suitable for RANS Calculations; AIAA-99-0662 (1999).

A. Shostko, R. Löhner, and W.C. Sandberg - Surface Triangulations Over Intersecting Geometries; Int. J. Num. Meth. Eng. 44, 1359-1376 (1999).

R. Löhner - Generation of Unstructured Grids Suitable for RANS Calculations; AIAA-99-3251-CP (1999).

R. Löhner and J. Cebral - Parallel Advancing Front Grid Generation; Proc. 8th Int. Meshing Roundtable, South Lake Tahoe, October (1999).

J. Cebral and R. Löhner - From Medical Images to CFD Meshes; Proc. 8th Int. Meshing Roundtable, South Lake Tahoe, October (1999).

R. Löhner - A Parallel Advancing Front Grid Generation Scheme; AIAA-00-1005 (2000). (pdf)

R. Löhner - Advances in Unstructured Grid Generation; Proc. ECCOMAS 2000, Barcelona, September (2000). (pdf)

R. Löhner - A Parallel Advancing Front Grid Generation Scheme; Int.J. Num. Meth. Eng. 51, 663-678 (2001).

J.R. Cebral and R. Löhner - From Medical Images to Anatomically Accurate Finite Element Grids; Int.J. Num. Meth. Eng. 51, 985-1008 (2001).

J.R. Cebral, R. Löhner, P.L. Choyke and P.J. Yim - Merging of Intersecting Triangulations for Finite Element Modeling; J. of Biomechanics 34, 815-819 (2001).

D. Sharov, J.D. Baum, H. Luo and R. Löhner - Recent Advances in RANS Gridding; paper presented at ECCOMAS CFD 2001 Conf., Swansea, Wales, September (2001).

J.R. Cebral, F.E. Camelli and R. Löhner - Unstructured Grid Generation Over Buildings Intersecting Terrain Data Using a Feature-Preserving Volumetric Technique; AIAA-02-0860 (2002). (pdf)

R. Tilch and R. Löhner - Advances in Discrete Surface Grid Generation: Towards a Reliable Industrial Tool for CFD; AIAA-02-0862 (2002). (pdf)

J.R. Cebral, F.E. Camelli and R. Löhner - A Feature-Preserving Volumetric Technique to Merge Surface Triangulations; Int. J. Num. Meth. Eng. 55, 177-190 (2002).

D. Sharov, H. Luo, J.D. Baum and R. Löhner - Unstructured Navier-Stokes Grid Generation at Corners and Ridges; Int. J. Num. Meth. Fluids 43, 717-728 (2003).

R. Löhner and E. Onate - A General Advancing Front Technique for Filling Space With Arbitrary Objects; Int. J. Num. Meth. Eng. 61, 1977-1991 (2004).

R. Löhner - Recent Advances in Unstructured Mesh and Point Generation; pp.1-23 in Proc. GiD2006: 3rd Conf.on Advances and Applications of GiD CIMNE Pub. 94 Barcelona, Spain, February (2006).

R. Tilch, A. Tabbal, M. Zhu, F. Dekker and R. Löhner - Combination of Body-Fitted and Embedded Grids for External Vehicle Aerodynamics; AIAA-07-1300 (2007). (pdf)

R. Aubry and R. Löhner - Generation of Viscous Grids With Ridges and Corners; AIAA-07-3832-CP (2007).

R. Aubry and R. Löhner - Extensions and Improvements of a RANS Grid Generator; AIAA-08-0916 (2008).

R. Aubry and R. Löhner - Generation of Viscous Grids At Ridges and Corners; Int. J. Num. Meth. Eng. 77, 1247-1289 (2009).

R. Löhner and E. Onate - An Advancing Front Technique for Filling Space with Arbitrary Objects; Int. J. Num. Meth. Eng. 78, 1618-1630 (2009).

R. Löhner and E. Onate - Advancing Front Techniques for Filling Space With Arbitrary Separated Objects; Finite Elements In Analysis and Design 46, 140-151 (2010).

A. Loseille and R. Löhner - Anisotropic Adaptive Simulations in Aerodynamics; AIAA-10-0169 (2010).

A. Loseille and R. Löhner - Boundary Layer Mesh Generation and Adaptivity; AIAA-11-0894 (2011).

**Solvers**

B. Petitjean, R. Löhner and C.R. DeVore - A Finite Element Solver for Radar Cross Section Calculations; AIAA-92-0455 (1992).

D. Martin and R. Löhner - An Implicit Linelet-Based Solver for Incompressible Flows; AIAA-92-0668 (1992).

R. Löhner - Some Useful Renumbering Strategies for Unstructured Grids; Int.J.Num.Meth.Eng.36, 3259-3270 (1993).

H. Luo, J.D. Baum, R. Löhner and J. Cabello - Adaptive Edge-Based Finite Element Schemes for the Euler and Navier-Stokes Equations; AIAA-93-0336 (1993).

H. Luo, J.D. Baum, R. Löhner and J. Cabello - An Implicit Three-Dimensional Finite Element Solver for Unstructured Meshes; pp. 1027,1028 in Proc.11th AIAA CFD Conf., Orlando, FL, July (1993).

J.D. Baum, H. Luo and R. Löhner - A New ALE Adaptive Unstructured Methodology for the Simulation of Moving Bodies; AIAA-94-0414 (1994).

H. Luo, J.D. Baum and R. Löhner - Edge-Based Finite Element Scheme for the Euler Equations; AIAA J.32, 6, 1183-1190 (1994).

J.J. Ambrosiano, S.T. Brandon, R. Löhner and C.R. DeVore - Electromagnetics via the Taylor-Galerkin Finite Element Method on Unstructured Grids; J.Comp.Phys.110, 310-319 (1994).

R. Löhner and J. McAnally - Transient and Steady Heat Conduction Using an Adaptive Finite Element CAD-Based Approach; Int.J.Heat and Fluid Flow 4, 311-327 (1994).

S. Sivier, E. Loth, J.D. Baum and R. Löhner - Unstructured Adaptive Remeshing Finite Element Method for Dusty Shock Flows; Shock Waves 4, 15-23 (1994).

J. Favre and R. Löhner - Raytracing with a Space-Filling Finite Element Mesh; Int.J.Num.Meth.Eng.37, 20, 3571-3580 (1994).

R. Ramamurti, R. Löhner and W. Sandberg - Evaluation of a Three-Dimensional Finite Element Incompressible Flow Solver; AIAA-94-0756 (1994).

H. Luo, J.D. Baum, R. Löhner and J. Cabello - Implicit Finite Element Schemes and Boundary Conditions for Compressible Flows on Unstructured Grids; AIAA-94-0816 (1994).

J. Cabello, K. Morgan and R. Löhner - A Comparison of Higher Order Schemes Used in a Finite Volume Solver for Unstructured Grids; AIAA-94-2293 (1994).

R. deFainchtein, S.T. Zalesak, R. Löhner and D.S. Spicer - Finite Element Simulation of a Turbulent MHD System: Comparison to a Pseudo-Spectral Simulation; Comp.Phys.Comm.86, 25-39 (1995).

H. Luo, J.D. Baum and R. Löhner - An Improved Finite Volume Scheme for Compressible Flows on Unstructured Grids; AIAA-95-0348 (1995).

H. Luo, J.D. Baum and R. Löhner - A Finite Volume Scheme for Hydrodynamic Free Boundary Problems on Unstructured Grids; AIAA-95-0668 (1995).

H. Luo, J.D. Baum and R. Löhner - A Hybrid Interface Capturing Method for Compressible Multi-Fluid Flows on Unstructured Grids; AIAA-96-0416 (1996).

R. Ramamurti and R. Löhner - A Parallel Implicit Incompressible Flow Solver Using Unstructured Meshes; Computers and Fluids 5, 119-132 (1996).

R. Löhner and Chi Yang - Improved ALE Mesh Velocities for Moving Bodies; Comm.Num.Meth.Eng. 12, 599-608 (1996).

H. Luo, J.D. Baum and R. Löhner - Computation of Compressible Flows Using a Two-Equation Turbulence Model on Unstructured Grids; AIAA-97-0430 (1997).

E. Darve and R. Löhner - Advanced Structured-Unstructured Solver for Electromagnetic Scattering from Multimaterial Objects; AIAA-97-0863 (1997).

R. Löhner - Computational Aspects of Space-Marching; AIAA-98-0617 (1998).

H. Luo, J.D. Baum and R. Löhner - A Fast, Matrix-Free Implicit Method for Compressible Flows on Unstructured Grids; J. Comp. Phys. 146, 664-690 (1998).

H. Luo, J.D. Baum and R. Löhner - An Accurate, Fast, Matrix-Free Implicit Method for Computing Unsteady Flows on Unstructured Grids; AIAA-99-0937 (1999).

H. Luo, J.D. Baum and R. Löhner - A Fast, Matrix-Free Implicit Method for Computing Low Mach-Number Flows on Unstructured Grids; AIAA -99-3315-CP (1999).

J. Waltz and R. Löhner - A Grid Coarsening Algorithm for Unstructured Multigrid Applications; AIAA-00-0925 (2000). (pdf)

H. Luo, D. Sharov, J.D. Baum and R. Löhner - On the Computation of Compressible Turbulent Flows on Unstructured Grids; AIAA-00-0926 (2000). (pdf)

D. Sharov, H. Luo, J.D. Baum and R. Löhner - Implementation of Untructured Grid GMRES+LU-SGS Method on Shared-Memory, Cache-Based Parallel Computers; AIAA-00-0927 (2000). (pdf)

R. Löhner, C. Sacco, E. Onate and S. Idelsohn - A Finite Point Method for Compressible Flow; paper presented at ECCOMAS 2000, Barcelona, September (2000). (pdf)

R. Löhner - Overlapping Unstructured Grids; AIAA-01-0439 (2001). (pdf)

R. Löhner, Chi Yang, J. Cebral, O. Soto, F. Camelli, J.D. Baum, H. Luo, E. Mestreau, D. Sharov, R. Ramamurti, W. Sandberg and Ch. Oh - Advances in FEFLO; AIAA-01-0592 (2001). (pdf)

O. Soto, R. Löhner and J. Cebral - An Implicit Monolithic Time Accurate Finite Element Scheme for Incompressible Flow Problems; AIAA 2001-2616 (2001). (pdf)

H. Luo, J.D. Baum and R. Löhner - An Accurate, Fast, Matrix-Free Implicit Method for Computing Unstready Flows on Unstructured Grids; Comp. and Fluids 30, 137-159 (2001).

H. Luo, J.D. Baum and R. Löhner - A Fast, Matrix-Free Implicit Method for Computing Low Mach Number Flows on Unstructured Grids; Int.J. CFD 14, No. 2. (2001).

H. Luo, D. Sharov, J.D. Baum and R. Löhner - On the Computation of Compressible Turbulent Flows on Unstructured Grids; Int.J. CFD 14, 253-270 (2001).

R. Löhner and Chi Yang - Tracking Vortices Over Large Distances Using Vorticity Confinement; paper presented at ECCOMAS CFD 2001 Conf., Swansea, Wales, September (2001). (pdf)

O. Soto, R. Löhner, J. Cebral and R. Codina - A Time-Accurate Implicit-Monolithic Finite Element Scheme for Incompressible Flow Problems; Proc. ECCOMAS CFD 2001 Conf., Swansea, Wales, September (2001). (pdf)

R. Löhner and Chi Yang - Vorticity Confinement on Unstructured Grids; AIAA-02-0137 (2002). (pdf)

F. Camelli and R. Löhner - Combining the Baldwin-Lomax and Smagorinsky Turbulence Models to Calculate Flows with Separation Regions; AIAA-02-0426 (2002). (pdf)

R. Löhner, Chi Yang, J. Cebral, O. Soto, F. Camelli, J.D. Baum, H. Luo, E. Mestreau and D. Sharov - Advances in FEFLO; AIAA-02-1024 (2002). (pdf)

R. Löhner, C. Sacco, E. Onate and S. Idelsohn - A Finite Point Method for Compressible Flow; Int. J. Num. Meth. Eng. 53, 1765-1779 (2002).

R. Löhner, E. Mestreau, J.D. Baum, Ch. Charman and D. Pelessone - Adaptive Embedded Unstructured Grid Methods; Proc. 8th Int. Conf. on Numerical Grid Generation in Computational Field Simulations Hawaii, June (2002).

R. Löhner, Chi Yang and R. Roger - Tracking Vortices Over Large Distances Using Vorticity Confinement; paper presented at 24th Symp. Naval Hydrodynamics Fukuoka, Japan, July (2002).

H. Luo, J.D. Baum and R. Löhner - Development and Application of Unstructured-Grid Methodologies for Turbulent Flows; AIAA-03-0277 (2003). (pdf)

R. Löhner, J.D. Baum, E.L. Mestreau, D. Sharov, Ch. Charman and D. Pelessone - Adaptive Embedded Unstructured Grid Methods; AIAA-03-1116 (2003). (pdf)

H. Luo, J.D. Baum and R. Löhner - Computation of Compressible Flows Using a Two-Equation Turbulence Model on Unstructured Grids; Int. J. CFD 17, (1), 87-93 (2003).

O. Soto, R. Löhner and F. Camelli - A Linelet Preconditioner for Incompressible Flows; Int. J. Num. Meth. Heat and Fluid Flow 13, (1), 133-147 (2003).

R. Löhner, J.D. Baum and E.L. Mestreau - Advances in Adaptive Embedded Unstructured Grid Methods; AIAA-04-0083 (2004). (pdf)

H. Luo, J.D. Baum and R. Löhner - High-Reynolds Number Viscous Flow Computations Using Unstructured-Grid Method; AIAA-04-1103 (2004). (pdf)

H. Luo, J.D. Baum and R. Löhner - On the Computation of Multi-Material Flows Using ALE Formulation; J. Comp. Phys. 194, 304-328 (2004).

R. Löhner - Multistage Explicit Advective Prediction for Projection-Type Incompressible Flow Solvers; J. Comp. Phys. 195, 143-152 (2004).

O. Soto, R. Löhner, J.R. Cebral and F. Camelli - A Stabilized Edge-Based Implicit Incompressible Flow Formulation; Comp. Meth. Appl. Mech. Eng. 193, 2139-2154 (2004).

Löhner, J.D. Baum, E. Mestreau, D. Sharov, C. Charman and D. Pelessone - Adaptive Embedded Unstructured Grid Methods; Int. J. Num. Meth. Eng. 60, 641-660 (2004).

R. Löhner and F. Camelli - Dynamic Deactivation for Advection-Dominated Contaminant Flow; Comm. Num. Meth. Eng. 20, 639-646 (2004).

N. Ahmad, Z. Boybeyi, R. Löhner and R.A. Sarma - A Higher-order Upwind Scheme on Unstructured Grids for Nonhydrostatic Atmosphere; paper presented at the 8th Annual GMU Conf. on Transport and Dispersion Modeling, Fairfax, VA, June (2004).

R. Löhner, Chi Yang, J.R. Cebral, O. Soto and F. Camelli - Improving the Speed and Accuracy of Projection-Type Incompressible Flow Solvers; Proc. 1st LNCC Meeting on Computational Modeling, Petropolis, Brazil, August (2004).

R. Löhner, J. Cebral, M. Castro, J.D. Baum, H. Luo, E. Mestreau and O. Soto - Adaptive Embedded Unstructured Grid Methods; plenary keynote paper, Proc. ENIEF04, Bariloche, Argentina, November (2004).

H. Luo, J.D. Baum and R. Löhner - A Hybrid Cartesian Grid and Gridless Method for Compressible Flows; AIAA-05-0492 (2005). (pdf)

N. Ahmad, Z. Boybeyi, R. Löhner and R.A. Sarma - A Godunov-type Finite-Volume Scheme for Flows on the Meso- and Micro-Scales; AIAA-05-1103 (2005).

R. Löhner - Projective Prediction of Pressure Increments; Comm. Num. Meth. Eng. 21, 4, 201-207 (2005).

R. Löhner, H. Luo and J.D. Baum - Selective Edge Deactivation for Unstructured Grids with Cartesian Cores; J. Comp. Phys. 206, 1, 208-226 (2005).

H. Luo, J.D. Baum and R. Löhner - High-Reynolds Number Viscous Flow Computations Using an Unstructured-Grid Method; J. Aircraft 42, 2, 483-492 (2005).

R. Löhner, H. Luo, J.D. Baum and D. Rice - Selective Edge Deactivation for Unstructured Grids with Cartesian Cores; AIAA-05-4985 (2005). (pdf)

H. Luo, J.D. Baum and R. Löhner - Extension of Harten-Lax-van Leer Scheme for Flows at All Speeds; AIAA J. 43, 6, 1160-1166 (2005).

R. Löhner, C. Yang and E. Onate - Large-Scale Simulation of Flows With Violent Free Surface Motion; pp. 55-81 in Computational Methods in Marine Engineering (P. Bergan, J. Garcia, E. Onate and T. Kvamsdal eds.), Oslo, Norway, June (2005). (pdf)

H. Luo, J.D. Baum and R. Löhner - A Fast p-Multigrid Discontinuous Galerkin Method for Compressible Flows on Unstructured Grids; AIAA-06-0110 (2006). (pdf)

F. Togashi, R. Löhner and N. Tsuboi - Numerical Simulation of H2/Air Detonation Using Detailed Reaction Models; AIAA-06-0954 (2006). (pdf)

H. Luo, J.D. Baum and R. Löhner - A Hybrid Cartesian Grid and Gridless Method for Compressible Flows; J.Comp.Phys.214, 618-632 (2006).

R. Löhner, Chi Yang, J.R. Cebral, F. Camelli, O. Soto and J. Waltz - Improving the Speed and Accuracy of Projection-Type Incompressible Flow Solvers; Comp.Meth.Appl.Mech.Eng.195, 23-24, 3087-3109 (2006).

R. Löhner, Chi Yang and E. Onate - On the Simulation of Flows with Violent Free Surface Motion; Comp.Meth.Appl.Mech.Eng.195, 5597-5620 (2006).

H. Luo, J.D. Baum and R. Löhner - A Hybrid Building-Block and Gridless Method for Computing Shock Waves; Proc.4th Int.Conf.on CFD Ghent, Belgium, July (2006).

H. Luo, J.D. Baum and R. Löhner - On the Computation of Steady-State Compressible Flows Using a Discontinuous Galerkin Method; Proc.4th Int.Conf.on CFD Ghent, Belgium, July (2006).

R. Löhner, J. Cebral, S. Appanoyima, J.D. Baum, E. Mestreau and O. Soto - Embedded and Immersed Methods for Adaptive Unstructured Grid Solvers; plenary keynote paper ENIEF'06 Conf. Santa Fe, Argentina, November (2006).

R. Löhner, J.D. Baum and D. Rice - Comparison of Body-Fitted and Embedded 3-D Euler Predictions for Blast Loads on Columns; Proc. MABS-19 Conf. Calgary, Canada, October (2006).

H. Luo, J.D. Baum and R. Löhner - A Hermite WENO-Based Limiter for DG Methods on Unstructured Grids; AIAA-07-0510 (2007). (pdf)

R. Aubry, R. Löhner, E. Onate and S. Idelsohn - Assessment of a Lagrangian Incompressible Flow Code; AIAA-07-0715 (2007).

R. Löhner, J.D. Baum, E.L. Mestreau and D. Rice - Comparison of Body-Fitted, Embedded and Immersed 3-D Euler Predictions for Blast Loads on Columns; AIAA-07-1133 (2007). (pdf)

F. Togashi, R. Löhner and N. Tsuboi - Numerical Simulation of H2/Air Detonation Wave Around Ostacles Using Detailed Reaction Models; AIAA-07-1170 (2007).

R. Löhner, S. Appanaboyina and J. Cebral - Comparison of Body-Fitted, Embedded and Immersed Solutions for Low Reynolds-Number Flows; AIAA-07-1296 (2007). (pdf)

H. Luo, J.D. Baum and R. Löhner - A Hermite WENO-Based Limiter for Discontinuous Galerkin Method on Unstructured Grids; J. Comp. Phys. 225, 686-713 (2007).

R. Löhner, J.R. Cebral, F.F. Camelli, J.D. Baum, E.L. Mestreau and O.A. Soto - Adaptive Embedded/Immersed Unstructured Grid Techniques; Arch. Comp. Meth. Eng. 14, 279-301 (2007).

H. Luo, J.D. Baum and R. Löhner - A Discontinuous Galerkin Met hod Based on a Taylor Basis for the Compressible Flows on Arbitrary Grids; AIAA-07-4080 (2007).

R. Löhner - Radiation Transport Using the Discrete Ordinates Method Within an Edge-Based FEM Solver; 14th Int. Cong. Finite Elements in Flows, Santa Fe, New Mexico, March (2007).

F. Perazzo, R. Löhner and L. Perez-Pozo - Adaptive Methodology for Meshless Finite Point Method; Advances in Engineering Software 39, 156-166 (2008).

H. Luo, J.D. Baum and R. L\öhner - On the Computation of Steady-State Compressible Flows Using a Discontinuous Galerkin Method; Int. J. Num. Meth. Eng. 73, 597-623 (2008).

R. Löhner, P. Ravier, J. Roger and P. deKermel - Combination of Compressible and Incompressible Flow Codes via Immersed Methods; AIAA-08-0528 (2008).

R. Löhner, H. Luo, J.D. Baum and D. Rice - Improvements in Speed for Explicit, Transient Compressible Flow Solvers; AIAA-08-0610 (2008).

F. Togashi, R. Löhner, N. Tsuboi and T. Obara - Numerical Simulation of H2/Air Detonation Wave Behind Slit-Plate Using Detailed Reaction Models; AIAA-08-0986 (2008).

R. Tilch, A. Tabbal, M. Zhu, F. Decker and R. Löhner - Combination of Body-Fitted and Embedded Grids for External Vehicle Aerodynamics; Engineering Computations25, 1, 28-41 (2008).

R. Löhner, J.R. Cebral, F.F. Camelli, S. Appanaboyina, J.D. Baum, E.L. Mestreau and O. Soto - Adaptive Embedded and Immersed Unstructured Grid Techniques; Comp. Meth. Appl. Mech. Eng. 197, 2173-2197 (2008).

R. Löhner, H. Luo, J.D. Baum and D. Rice - Improvements in Speed for Explicit, Transient Compressible Flow Solvers; Int. J. Num. Meth. Fluids 56, 12, 2229-2244 (2008).

R. Löhner, S. Appanaboyina and J. Cebral - Comparison of Body-Fitted, Embedded and Immersed Solutions for Low Reynolds-Number Flows; Int. J. Num. Meth. Fluids 57, 1, 13-30 (2008).

S. Appanaboyina, F. Mut, R. Löhner, C. M. Putman and J. R. Cebral - Computational Fluid Dynamics of Stented Intracranial Aneurysms Using Adaptive Embedded Unstructured Grids; Int. J. Num. Meth. Fluids 57, 5, 475-493 (2008).

R. Löhner, S. Appanaboyina and J. R. Cebral - Parabolic Recovery of Boundary Gradients; Comm. Num. Meth. Eng. (2008).

R. Aubry, F. Mut, R. Löhner and J. R. Cebral - Deflated Preconditioned Conjugate Gradient Solvers for the Pressure-Poisson Equation; J. Comp. Phys. 227, 24, 10196-10208 (2008).

H. Luo, J.D. Baum and R. Löhner - A Hybrid Building-Block and Gridless Method for Compressible Flows; Int. J. Num. Meth. Fluids 59, 459-474 (2009).

R. Löhner - On Limiters for Minimal Vorticity Dissipation; AIAA-09-0135 (2009).

F. Mut, R. Aubry, G. Pierrot, J. Roger, J. Cebral and R. Löhner - Coarse-Grain Deflation for Preconditioned Conjugate Gradient Solvers: Application to the Pressure Poisson Equation; AIAA-09-0165 (2009).

T. Tsuga, R. Löhner and F. Togashi - Multi-Objective Assessment of Blast Damage; AIAA-09-0364 (2009).

A. Stück, F. Camelli and R. Löhner - Adjoint-Based Design of Shock Mitigation Devices; AIAA-09-3801 (2009).

R. Löhner, F. Camelli, J.D. Baum and O.A. Soto - Simulation of Multiphase Blast-Structure Interaction Via Coupled CFD and CSD Codes; AIAA-10-0096 (2010).

F. Mut, R. Aubry, G. Houzeaux, J. Cebral and R. Löhner; Deflated Preconditioned Conjugate Gradient Solvers: Extensions and Improvements; AIAA-10-0118 (2010).

A. Stück, F. Camelli and R. Löhner - Adjoint-Based Design of Passive and Active Shock Mitigation Devices; AIAA-10-1430 (2010).

F. Mut, R. Aubry, R. Löhner and J.R. Cebral - Fast Numerical Solutions to Patient-Specific Blood Flows in 3D Arterial Systems; Int. J. Num. Meth. Biomed. Eng. 26, 73-85 (2010).

A. Stück, F. Camelli and R. Löhner - Adjoint-Based Design of Shock Mitigation Devices; Int. J. Num. Meth. Fluids 64, 443-472 (2010).

R. Löhner - Error and Work Estimates for High Order Elements; AIAA-11-0211 (2011).

R. Löhner and A. Loseille - A Simple Scheme to Limit Refinement Zones for Supersonic Flows; AIAA-11-0470 (2011).

R. Löhner, F. Mut, J.R. Cebral, R. Aubry and G. Houzeaux; Deflated Preconditioned Conjugate Gradient Solvers for the Pressure-Poisson Equation: Extensions and Improvements; Int. J. Num. Meth. Eng. 87, 1-5, 2-14 (2011).

R. Aubry, F. Mut, S.Dey and R. Löhner - Deflated Solvers for Linear Elasticity and Helmholtz Equation; AIAA-11-3236 (2011).

F. Togashi, J.D. Baum and R. Löhner - Numerical Modeling of Aluminum Burning for Heavily Aluminized HE; AIAA-11-3588 (2011).

R. Löhner - Improved Error and Work Estimates for High Order Elements; AIAA-12-0291 (2012).

S. Torbert and R. Löhner - Checkpointing Schemes for Adjoint Methods and Strongly Unsteady Flow; AIAA-12-0572 (2012).

**Free Surface Flows**

C. Yang and R. C. Ertekin - Numerical Simulation of Nonlinear Wave Diffraction by a Vertical Cylinder; Transactions of the ASME, Journal of Offshore Mechanics and Arctic Engineering, Vol. 114 (1992).

F. Noblesse, D. Anthony and C. Yang, Water Waves Radiated by Coherent Vortices in a Submerged Jet; Journal of Ship Research, Vol. 37, No. 1 (1993).

F. Noblesse and C. Yang - An Approach to the Calculation of Wave Loads on Ships and Floating Structures; J. of Marine Structures , Vol. 6 (1993).

R. C. Ertekin, Z. Qian and C. Yang - Positioning of a Floating OTEC Plant by Surface Intake Water; Int. J. of Offshore and Polar Eng. Vol. 3, No. 3 (1993).

F. Noblesse and C. Yang - Fourier-Kochin Formulation of Wave Diffraction- Radiation by Ships or Offshore Structures; Ship Technology Research, Vol. 42 (1995).

R. Löhner, Chi Yang, E. Onate and S. Idelssohn - An Unstructured Grid-Based, Parallel Free Surface Solver; AIAA97-1830 (1997).

R. Löhner, C. Yang and E. Onate - Viscous Free Surface Hydrodynamics Using Unstructured Grids; Proc. 22nd Symp. Naval Hydrodynamics Washington, D.C., August (1998).

R. Löhner, C. Yang and E. Onate - Free Surface Hydrodynamics Using Unstructured Grids; Computational Fluid Dynamics'98 (ECCOMAS) (K.D. Papailiou, D. Tsahalis, J. Periaux and D. Knörzer eds.), J. Wiley and Sons, September (1998).

C. Yang, R. Löhner and F. Noblesse - Farfield Extension of Fully Nonlinear Nearfield Ship Waves; AIAA-99-0548 (1999).

F. Noblesse, C. Yang, R. Löhner and D. Hendrix - Fourier-Kochin Theory Representation of Farfield Steady Ship Waves; Proc. Septiemes Journees de L'Hydrodynamique, Marseille, France, March (1999).

C. Yang, F. Noblesse, and R. Löhner - Application of the Fourier-Kochin Theory to the Farfield Extension of Nonlinear Nearfield Steady Ship Waves; Proc. 14th Int. Workshop on Water Waves and Floating Bodies, Port Huron, Michigan, April (1999).

C. Yang, R. Löhner, D. Hendrix and F. Noblesse - Fourier-Kochin Extension of Fully Nonlinear Near-Field Ship Waves; Proc. 7th Int. Conf. Num. Ship Hydrodynamics, Nantes, France, July (1999).

Chi Yang, R. Löhner, F. Noblesse and T.T. Huang - Calculation of Ship Sinkage and Trimm Using Unstructured Grids; Proc. ECCOMAS 2000, Barcelona, September (2000). (pdf)

Chi Yang, F. Noblesse, R. Löhner and D. Hendrix - Practical CFD Applications to Design of a Wave Cancellation Multihull Ship; Proc. 23rd Symp. on Naval Hydrodynamics, Val de Reuil, France, September (2000). (pdf)

C. Yang, R. Löhner and O. Soto - Optimization of a Wave Cancellation Multihull Ship using CFD Tools; Proc. 8th Int. Symp. on Practical Design of Ships and Other Floating Structures - PRADS 2001, Shangai, China, September (2001). (pdf)

C. Yang, F. Noblesse and R. Löhner - Practical Hydrodynamic Optimization of a Trimaran SNAME Annual Meeting, Orlando, FL, October (2001). (pdf)

C. Yang, R. Löhner and O. Soto - Optimization of a Wave Cancellation Multihull Ship using CFD Tools; J. of Hydrodynamics B, 1, 1-7 (2002).

C. Yang and R. Löhner - Calculation of Ship Sinkage and Trim Using a Finite Element Method and Unstructured Grids; Int. J. CFD 16, (3), 217-227 (2002).

C. Yang, O. Soto, R. Löhner and F. Noblesse - Hydrodynamic Optimization of a Trimaran; Ship Technology Research 49, 2, 70-92 (2002).

C. Yang, F. Noblesse and R. Löhner - Comparison of Classical and Simple Free-Surface Green Functions; Proc Int. Soc. of Offshore and Polar Eng. (ISOPE) Conf. , Toulon, France, May (2004).

C. Yang and R. Löhner - H2O: Hierarchical Hydrodynamic Optimization; paper presented at the 25th Symp. on Naval Hydrodynamics, St. John's, Newfoundland and Labrador, Canada, August (2004).

Chi Yang, R. Löhner and F. Noblesse - Comparison of Classical and Simple Free-Surface Green Functions; Int. J. Offshore and Polar Eng. 14, 4, 257-264 (2004).

C. Yang, R. Löhner and S.C. Yim - Development of a CFD Simulation Method for Extreme Wave and Structure Interactions; Proc. 24th Int. Conf. on Offshore Mech. and Arctic Eng., OMAE2005-67422, Halkidiki, Greece, June (2005). (pdf)

C. Yang and R. Löhner - Computation of 3D Flows with Violent Free Surface Motion; Proc Int. Soc. of Offshore and Polar Eng. (ISOPE) Conf., Pusan, Korea, June (2005). (pdf)

R. Löhner, C. Yang and E. Onate - Large-Scale Simulation of Flows With Violent Free Surface Motion; pp. 55-81 in Computational Methods in Marine Engineering (P. Bergan, J. Garcia, E. Onate and T. Kvamsdal eds.), Oslo, Norway, June (2005). (pdf)

R. Löhner, C. Yang and E. Onate - On the Simulation of Flows With Violent Free Surface Motion; AIAA-06-0291 (2006). (pdf)

R. Löhner, Chi Yang and E. Onate - On the Simulation of Flows with Violent Free Surface Motion; Comp.Meth.Appl.Mech.Eng.195, 5597-5620 (2006).

F. Noblesse, Chi Yang, R. Espinoza and R. Löhner - Fundamental Wavenumbers of Diffraction-Radiation by a Ship that Advances Through Regular Waves in Finite Water Depth; Int.J.Offshore and Polar Eng.16, 4, 241-252 (2006).

C. Yang and R. Löhner - On the Modeling of Highly Nonlinear Wave-Body Interactions; Proc Int.Soc.of Offshore and Polar Eng.(ISOPE) Conf. San Francisco, CA, June (2006).

C. Yang, R. Löhner and H. Lu - An Unstructured-Grid Based Volume-of-Fluid Method for Extreme Wave and Freely-Floating Structure Interaction, Proc.Conf.Global Chinese Scholars on Hydrodynamics (D.X. Xhu, L.D. Zhou and X.C. Yang eds), July (2006).

R. Löhner, Chi Yang and E. Onate - Simulation of Flows With Violent Free Surface Motion and Moving Objects Using Unstructured Grids; Int. J. Num. Meth. Fluids 53, 1315-1338 (2007).

C. Yang, H. Kim, R. Löhner and F. Noblesse - Practical Hydrodynamic Optimization of Hull Forms; Proc. Grand Challenges in Modeling and Simulations Conf. (GCMS'08), Edinburg, Scotland, June 16-19 (2008).

C. Yang, H. Lu, R. Löhner and W.C. Sandberg - Computation of the Three-Dimensional Nonlinear Flow Around a Body in or Near the Free Surface; Proc. Int. Conf. on Offshore Mech. and Arctic Eng. , OMAE2008-57897, Estoril, Portugal, June (2008).

H. Lu, C. Yang and R. Löhner - Numerical Studies of Green Water Effect on a Moored FPSO; Proc. ISOPE Conf. ISOPE Paper No. 2008-TPC-516, Vancouver, Canada, July (2008).

H. Kim, C. Yang, R. Löhner and F. Noblesse - A Practical Hydrodynamic Optimization Tool for the Design of a Monohull Ship; Proc. ISOPE Conf. ISOPE Paper No. 2008-TPC-517, Vancouver, Canada, July (2008).

**Dispersion**

S.R. Hanna, S. Tehranian, B. Carissimo, R.W. Macdonald and R. Löhner - Comparisons of Model Simulations with Observations of Mean Flow and Turbulence Within Simple Obstacle Arrays; Atmospheric Environment 36, 5067-5079 (2002).

F. Camelli, O. Soto, R. Löhner, W. Sandberg and R. Ramamurti - Topside LPD17 Flow and Temperature Study with an Implicit monolithic Scheme; AIAA-03-0969 (2003). (pdf)

F. Camelli, R. Löhner, W.C. Sandberg and R. Ramamurti - VLES Study of Ship Stack Gas Dynamics; AIAA-04-0072 (2004). (pdf)

R. Löhner and F. Camelli - Dynamic Deactivation for Advection-Dominated Contaminant Flow; Comm. Num. Meth. Eng. 20, 639-646 (2004).

F. Camelli and R. Löhner - Assessing Maximum Possible Damage for Contaminant Release Events; Engineering Computations 21, 7, 748-760 (2004).

F. Camelli, S. Hanna and R. Löhner - Simulation of MUST Using FEFLO-URBAN CFD Model; paper presented at the 8th Annual GMU Conf. on Transport and Dispersion Modeling, Fairfax, VA, June (2004).

R. Löhner and F. Camelli - Optimal Placement of Sensors for Contaminant Detection Based on Detailed 3-D CFD Simulations; paper presented at the 8th Annual GMU Conf. on Transport and Dispersion Modeling, Fairfax, VA, June (2004).

F. Camelli, R. Löhner and S. Hanna - FEFLO-URBAN CFD Model Evaluation of the MUST Experiment; Proc. ENIEF04, Bariloche, Argentina, November (2004).

F.E. Camelli, R. Löhner and S.R. Hanna - VLES Study of MUST Experiment; AIAA-05-1279 (2005). (pdf)

F. Camelli, R. Löhner and S. Hanna - Dispersion Patterns in a Heterogeneous Urban Area; DHS R&D Conf. , Boston, Ma, April (2005).

F. Camelli and R. Löhner - VLES Study of Flow and Dispersion Patterns in Heterogeneous Urban Areas; AIAA-06-1419 (2006). (pdf)

F.E. Camelli and R. Löhner - Studying the Effects of a Forest Model in a Numerical Study of Atmospheric Dispersion Using FEFLO-Urban; 16th Conf. on Air Pollution Meteorology, 90th American Meteorological Society Annual Meeting, Atlanta, GA, January (2010).

**Hemodynamics**

J.R. Cebral and R. Löhner - Automatic Grid Generation for Anatomically Accurate Computational Hemodynamics Calculations; Proc. ICMMB-11, April 2-5, Hawaii (2000).

J.R. Cebral, R. Löhner and J. Burgess - Computer Simulation of Cerebral Artery Clipping: Relevance to Aneurysm Neuro-Surgery Planning; Proc. of ECCOMAS 2000 Conf. , Barcelona, Spain, September (2000).

P.J. Yim, J.R. Cebral, R. Löhner, H. Marcos and P.L. Choyke - Interpretation of Arterial Velocity Waveforms Using Computational Fluid Dynamics; Proc. SPIE Medical Imaging, Vol. 4321, Paper No. 11, San Diego, California, February (2001).

J.R. Cebral, P.J. Yim, R. Löhner, O. Soto, H. Marcos and P.L. Choyke - New Methods for Computational Fluid Dynamics of Carotid Artery From Magnetic Resosnance Angiography; Proc. SPIE Medical Imaging, Vol. 4321, Paper No. 22, San Diego, California, February (2001).

J.R. Cebral, R. Löhner, O. Soto and P.J. Yim - On the Modeling of Carotid Artery Blood Flow From Magnetic Resonance Images; Proc.\ ASME-BED Bioengineering Conf. , Vol. 50, June 27-July 1 (2001).

J.R. Cebral and R. Löhner - From Medical Images to Anatomically Accurate Finite Element Grids; Int. J. Num. Meth. Eng. 51, 985-1008 (2001).

R. Löhner, J. Cebral, O. Soto, P. Yim and J. Burgess - CFD in Medicine and Life Sciences - Applications on the Living Human Being; paper presented at the 5th World Conf. on Applied Fluid Dynamics, Freiburg i.Br., Germany, July (2001).

J.R. Cebral, R. Löhner and P. Yim - Image-Based Blood Flow Modeling as a Predictive Tool for Planning Medical Interventions; paper presented at ECCOMAS CFD 2001 Conf. , Swansea, Wales, September (2001).

J.R. Cebral, R. Löhner, P.L. Choyke and P.J. Yim - Merging of Intersecting Triangulations for Finite Element Modeling; J. of Biomechanics 34, 815-819 (2001).

P.J. Yim, J.R. Cebral, V.B. Ho, H.B. Marcos, G. Boudewijn, C. Vasbinder, A. Rowedder, A. Sortur , J.M.A. van Engelshoven, O. Soto, R. Löhner and P.L. Choyke - Computational Modeling of Blood Flow Patterns from Magnetic Resonance Imaging, Proc. RSNA, October (2001).

J.R. Cebral, R. Löhner, O. Soto, P.L. Choyke and P.J. Yim - Patient-Specific Simulation of Carotid Artery Stenting Using Computational Fluid Dynamics, pp. 153-160 in Springer LNCS 2208 (Proc. MICCAI 2001, Utrecht, The Netherlands, Oct. 14-17) (2001).

P.J. Yim, J.R. Cebral, R. Löhner, V.B. Ho and P.L. Choyke - Estimation of Mechanical Stress on the Carotid Artery; Proc. BMES 2001, October (2001).

J.R. Cebral, R. Löhner, O. Soto, P.L. Choyke and P.J. Yim - Image-Based Finite Element Modeling of Hemodynamics in Stenosed Carotid Artery; Proc. SPIE Medical Imaging, Vol. 4683, paper No. 34, San Diego, CA, February (2002).

J.R. Cebral, F.E. Camelli and R. Löhner - A Feature-Preserving Volumetric Technique to Merge Surface Triangulations; Int. J. Num. Meth. Eng. 55, 177-190 (2002).

J.R. Cebral, M. Castro, R. Löhner, O. Soto and P.J. Yim - Finite Element Modeling of Blood Flows in Healthy and Diseased Arteries; Proc. 5th World Congress on Comp. Mech. , July 7-12, Vienna, Austria (2002).

J. Cebral, R. Löhner, P.L. Choyke and P.J. Yim - Parallel Patient-Specific Computational Haemodynamics; pp.18-34 in Applied Parallel Computing (J. Fagerholm et al. eds.), Springer LNCS 2367 (2002).

J.R. Cebral, M. Castro, R. Löhner, O. Soto, P.J. Yim and N. Alperin - Finite Element Modeling of the Circle of Willis from Magnetic Resonance Data; Proc. SPIE Medical Imaging, San Diego, CA, Feb. 15-20 (2003).

J.R. Cebral, M. Castro, R. Löhner, O. Soto, P.J. Yim and N. Alperin - Realistic Cerebral Circulation Models from Medical Image Data, Proc. ASME-BED Summer Bioengineering Meeting, Key Biscayne, FL, June 25-29 (2003).

R. Löhner, J. Cebral, O. Soto, P. Yim and J.E. Burgess - Applications of Patient-Specific CFD in Medicine and Life Sciences; Int. J. Num. Meth. Fluids 43, 637-650 (2003).

J.R. Cebral, M.A. Castro, O. Soto, R. Löhner and N. Alperin - Blood-Flow Modeling of the Circle of Willis from Magnetic Resonance Data; J. of Eng. Math. 47, 369-386 (2003).

R. Löhner, J.R. Cebral, M.A. Castro, S. Appanaboyima, J.E. Burgess and C.M. Putnam - Patient-Specific Modelling of Blood Flow Past Endovascular Devices Using Unstructured Embedded Grid Methods; Proc. 1st LNCC Meeting on Computational Modeling, Petropolis, Brazil, August (2004).

J. Cebral, M. Castro, R. Löhner, J. Burgess, R. Pergolizzi and C. Putman - Recent Developments in Patient-Specific Image-Based Modeling of Hemodynamics; Proc. ENIEF04, Bariloche, Argentina, November (2004).

J.R. Cebral and R. Löhner - Efficient Simulation of Blood Flow Past Complex Endovascular Devices Using an Adaptive Embedding Technique; IEEE Transactions on Medical Imaging 24, 4, 468-476 (2005).

R. Löhner, S. Appanaboyina and J. Cebral - Comparison of Body-Fitted, Embedded and Immersed Solutions for Low Reynolds-Number Flows; AIAA-07-1296 (2007). (pdf)

J.R. Cebral, A. Radaelli, A. Frangi and C.M. Putman - Hemodynamics Before and After Bleb Formation in Cerebral Aneurysms; SPIE Medical Imaging, 6511: 65112C-1 â€“ 65112C-9 (2007).

A. Radaelli , T. Sola Martinez, E. Vivas Dias, X. Mellado, M.A. Castro, C.M. Putman, L. Guimaraens, J.R. Cebral and A. Frangi - Combined Clinical and Computational Information in Complex Cerebral Aneurysms: Application to Mirror Cerebral Aneurysms; SPIE Medical Imaging, 6511: 65111F-1 â€“ 65111F-12 (2007).

E. Oubel, M. DeCraene, C.M. Putman, J.R. Cebral and A. Frangi - Analysis of Intracranial Aneurysm Wall Motion and its Effect on Hemodynamic Patterns; SPIE Medical Imaging, 6511: 65112A-1 â€“ 65112A-8 (2007).

M. Castro, C.M. Putman and J.R. Cebral - Hemodynamic Patterns of Anterior Communicating Artery Aneurysms: A Possible Association with Rupture; SPIE Medical Imaging, 6511: 65112B-1 â€“ 65112B-11 (2007).

S. Appanaboyina, F. Mut, R. Löhner, C.M. Putman and J.R. Cebral - Patient-Specific Modeling of Intracranial Aneurysm Stenting; SPIE Medical Imaging, 6511: 65112D-1 â€“ 65112D-11 (2007).

S. Appanaboyina, F. Mut, R. Löhner, C.M. Putman and J.R. Cebral - Techniques for Computational Stenting of Intracranial Aneurysms; ASME Summer Bioengineering Meeting, Keystone, Colorado, June 20-24 (2007).

J.R. Cebral, R. Löhner, S. Appanaboyina and C. Putman - Image-Based Computational Hemodynamics Methods and Their Application for the Analysis of Blood Flow Past Endovascular Devices; Chapter 2 in Biomechanical Systems Technology (C.T. Leondes ed.), World Scientific (2008).

R. Löhner - Computational Fluid Dynamics; FDA/NIH/NSF Workshop on Computer Methods for Cardiovascular Devices, Bethesda, MD, Mar 18-19 (2008).

R. Löhner, J. Cebral, F. Mut, S. Appananoyima and C. Putnam - Patient-Specific Device Optimization; inaugural plenary keynote lectute, ENIEF'08, San Luis, Argentina, Nov. 9-12 (2008).

F. Mut, R. Aubry, R. Löhner and J.R. Cebral - Fast Numerical Solutions to Patient-Specific Blood Flows in 3D Arterial Systems; Int. J. Num. Meth. Biomed. Eng. 26, 73-85 (2010).

D.M. Sforza, R. Löhner, C. Putnam and J.R. Cebral - Hemodynamic Analysis of Intracranial Aneurysms With Moving Parent Arteries: Basilar Tip Aneurysms; Int. J. Num. Meth. Biomed. Eng. 26, 10, 1219-1227 (2010).

P. Nithiarasu, R. Löhner, R. van Loon and I. Sazonov (eds.) - Proc. 2nd Int. Conf. Computational and Mathematical Biomedical Engineering , Fairfax, VA, March 29 - April 1 (2011).

F. Mut, R. Löhner, A. Chien, S. Tateshima, F. Vinuela, C. Putnam and J.R. Cebral - Computational Hemodynamics Framework for the Analysis of Cerebral Aneurysms; Int. J. Num. Meth. Biomed. Eng. 27, 6, 822-839 (2011).

J.R. Cebral, F. Mut, D. Sforza, R. Löhner, E. Scrivano, P. Lylyk and C. Putnam - Clinical Applications of Image-Based CFD for Cerebral Aneurysms; Int. J. Num. Meth. Biomed. Eng. 27, 7, 977-992 (2011).

**Fluid Structure Interaction**

R. Löhner, E. Haug, P. deKermel, J.-L. Matilla and E. Mestreau - New Advances in Fluid-Structure Interaction Using Adaptive Unstructured Grids and Automatic Mesh Generation; pp. 24.1-24.14 in Proc. Second World Conf. Appl. Computational Fluid Dynamics (B. Löffler and A. Müller eds.), Basel World User Days CFD 1994, Basel, May (1994).

R. Löhner, C. Yang, J. Cebral, J.D. Baum, H. Luo, D. Pelessone and C. Charman - Fluid-Structure Interaction Using a Loose Coupling Algorithm and Adaptive Unstructured Grids; AIAA-95-2259 (1995).

J.D. Baum, H. Luo and R. Löhner - Numerical Simulations of Fluid-Structure Interactions; Proc. 20th Int.Symp.on Shock Waves, Pasadena, CA, July (1995).

J.R. Cebral and R. Löhner - Conservative Load Projection and Tracking for Fluid-Structure Problems; AIAA-96-0797 (1996). Also: AIAA Journal, Vol. 35, No. 4, pp. 687-692, 1997.

J.R. Cebral and R. Löhner - Fluid-Structure Coupling: Extensions and Improvements; AIAA-97-0858 (1997).

J.D. Baum, H. Luo and R. Löhner - The Numerical Simulation of Strongly Unsteady Flows With Hundreds of Moving Bodies; AIAA-98-0788 (1998).

R. Löhner and J.R. Cebral - Fluid-Structure Interaction in Industry: Issues and Outlook (1998); pp. 24.1-24.8 in Proc. Fourth World Conf. and Exhibition Applied Fluid Dynamics (A. Müller, B. Löffler, L. Etter eds.), World Fluid Dynamics Days'1998, Freiburg i.Br., Germany, May (1998).

R. Löhner, C. Yang, J. Cebral, J.D. Baum, H. Luo, D. Pelessone and C. Charman - Fluid-Structure-Thermal Interaction Using a Loose Coupling Algorithm and Adaptive Unstructured Grids; AIAA-98-2419 [Invited] (1998).

J.D. Baum, H. Luo, E. Mestreau, R. Löhner, D. Pelessone and C. Charman - A Coupled CFD/CSD Methodology for Modeling Weapon Detonation and Fragmentation; AIAA-99-0794 (1999).

R. Löhner, C. Yang, J. Cebral, J.D. Baum, E. Mestreau, H. Luo, D. Pelessone and C. Charman - Fluid-Structure-Thermal Interaction Using Adaptive Unstructured Grids; pp.109-120 in Computational Methods for Fluid-Structure Interaction (T. Kvamsdal et al. eds.), Tapir Press (1999).

R. Löhner, Chi Yang, J.D. Baum, H. Luo, D. Pelessone and C. Charman - The Numerical Simulation of Strongly Unsteady Flows With Hundreds of Moving Bodies; Int. J. Num. Meth. Fluids 31, 113-120 (1999).

R. Löhner, J.D. Baum, E.L. Mestreau, D. Sharov, Ch. Charman and D. Pelessone - Adaptive Embedded Unstructured Grid Methods; AIAA-03-1116 (2003). (pdf)

J.D. Baum, E. Mestreau, H. Luo, R. Löhner, D. Pelessone and Ch. Charman - Modeling Structural Response to Blast Loading Using a Coupled CFD/CSD Methodology; Proc. Des. An. Prot. Struct. Impact/ Impulsive/ Shock Loads (DAPSIL), Tokyo, Japan, December (2003).

R. Löhner, J. Cebral, C. Yang, J.D. Baum, E. Mestreau, C. Charman and D. Pelessone - Large-Scale Fluid-Structure Interaction Simulations; Computing in Science and Engineering (CiSE) May/June'04, 27-37 (2004).

R. Löhner, J.D. Baum, C. Charman and D. Pelessone - Prediction of Blast Effects on Structures Using Coupled, First-Principle CFD and CSD Codes; J. of the Japan Society for Computational Engineering and Science (JSCES) 9, 3, 30-37 (2004). [in Japanese]

J.D. Baum, E.L. Mestreau, H. Luo, R. Löhner and D. Pelessone - Coupled CFD/CSD Modeling of Weapon Detonation/Fragmentation in a Tunnel; Proc. MABS-18 Conf., Bad Reichenhall, Germany, September (2004).

R. Löhner, J.D. Baum and D. Rice - Comparison of Coarse and Fine Mesh 3-D Euler Predictions for Blast Loads on Generic Building Configurations; Proc. MABS-18 Conf., Bad Reichenhall, Germany, September (2004).

R. Löhner - Blast Mitigation: A Co-Evolutionary Approach; paper presented at the Built Infrastructure Security Workshop (BIS'2004), Arlington, VA, October (2004).

J.R. Cebral and R. Löhner - On the Loose Coupling of Implicit Time-Marching Codes; AIAA-05-1093 (2005). (pdf)

R. Löhner, F. Togashi, J.D. Baum, H. Luo and D. Rice - Comparison of Search Algorithms for Assessing Maximum Possible Blast Damage; DHS R&D Conf., Boston, Ma, April (2005).

J.D. Baum, E. Mestreau, H. Luo, R. Löhner, D. Pelessone, M.E. Giltrud and J.K. Gran - Modeling of Near-Field Blast Wave Evolution; AIAA-06-0191 (2006). (pdf)

J. Arteaga-Gomez, R. Löhner, J. Rojek and E. Onate - Coupling of FEFLO with SIMPACT; AIAA-06-0696 (2006). (pdf)

R. Löhner, Chi Yang and E. O\~nate - On the Simulation of Flows with Violent Free Surface Motion; Comp.Meth.Appl.Mech.Eng.195, 5597-5620 (2006).

C. Yang and R. Löhner - Simulation of Ship Motions Induced by Extreme Waves; plenary keynote paper Proc. 3rd Asia-Pacific Workshop on Marine Hydrodynamics (APHydro 2006) Shanghai, China, June (2006).

D. Rice, J.D. Baum, R. Löhner and D. Pelessone - Coupled CFD/CSD/DPM Modeling of Wall Response to Blast Loading; Proc. MABS-19 Conf. Calgary, Canada, October (2006).

J.D. Baum and R. Löhner - Coupled CFD/CSD/DPM Modeling of a Cased Charge Detonation and Fragmentation; Proc. MABS-19 Conf. Calgary, Canada, October (2006).

O.A. Soto, E.L. Mestreau, J.D. Baum and R. Löhner - An Efficient CSD FE Scheme for Weapon Simulations; Proc. Conf., Venice, Italy, October (2006).

J. Arteaga-Gomez, R. Löhner, J. Rojek and E. O\~nate - SIMPACT-FEFLO Coupling: Recent Advances; AIAA-08-0676 (2008).

O.A. Soto, J.D. Baum, M.E. Giltrud and R. Löhner - Modeling of an Explosively Formed Projectile (EFP) Using a Coupled CFD/CSD Methodology; Proc. MABS-20 Conf., Oslo, Norway, September (2008).

J.D. Baum, O.A. Soto, M.E. Giltrud, R. Löhner, C. Charman, J. Wolfson, G. Hegemeier and K. Arnett - Modeling of Steel Plate Response to Blast Loading Using a Coupled CFD/CSD Methodology; Proc. MABS-20 Conf., Oslo, Norway, September (2008).

R. Löhner - On Some Open Problems in Fluid-Structure Interaction; International Workshop on Fluid-Structure Interaction: Theory, Numerics and Applications, Herrsching (Munich), Germany, Sept. 29 - Oct 1 (2008).

O.A. Soto, J.D. Baum and R. Löhner - An Efficient Fluid-Solid Coupled Finite Element Scheme for Weapon Fragmentation Simulations; Eng. Fract. Mech. 77, 549-564 (2010).

R. Löhner, F. Camelli, J.D. Baum and O.A. Soto - Simulation of Multiphase Blast-Structure Interaction Via Coupled CFD and CSD Codes; AIAA-10-0096 (2010).

R. Löhner, F.F. Camelli and Arthur Stüuck - Adjoint-Based Design of Passive Shock Mitigation Devices; Proc. MABS-21 Conf., Jerusalem, Israel, October (2010).

J.D. Baum, O.A. Soto, F. Togashi and R. Löhner - Modeling of Multiphase Fluid-Structure Interaction Phenomena Using a Coupled CFD-CSD Methodology; Proc. MABS-21 Conf., Jerusalem, Israel, October (2010).

A. Amini, F. Togashi, O.A. Soto, J.D. Baum and R. Löhner - Blast Propagation in a Generic Facility; Proc. MABS-21 Conf., Jerusalem, Israel, October (2010).

R. Löhner and J.D. Baum - An Assessment of Architectually Appealing, Semi-Open Shock Mitigation Devices; Proc. MABS-21 Conf., Jerusalem, Israel, October (2010).

F. Togashi, J.D. Baum, R. Löhner, O.A. Soto and A. Amini - Numerical Investigation of Aluminum Burning Behind Blast Waves; Proc. MABS-21 Conf., Jerusalem, Israel, October (2010).

R. Löhner - Simulation of Separation of Stores Partially Filled With Fluids; AIAA-11-0028 (2011).

A. Michalski, P.D. Kermel, E. Haug, R. Löhner, R. Wüuchner, K.-U. Bletzinger - Validation of the Computational Fluidâ€“Structure Interaction Simulation at Real-Scale Tests of a Flexible 29 m Umbrella in Natural Wind Flow; J. Wind Eng. Ind. Aerodyn. 99, 400â€“413 (2011).

R. Löhner - Coupling Several CFD and CSD Codes in One Application; pp. 1 - 16 in Special Edition Int. J. of Multiphysics (2011).

J.D. Baum, O.A. Soto, F. Togashi and R. Löhner - Numerical Modeling of Multiphase, Multimaterial Blast/Structure Interactions; AIAA-11-3722 (2011).

R. Löhner and J.D. Baum - An Assessment of Architecturally Appealing, Semi-Open Shock Mitigation Devices; Engineering Computations 29, 1, 19-30 (2012).

**Optimal Shape Design**

O. Soto and R. Löhner - CFD Optimization Using an Incomplete-Gradient Adjoint Approach; AIAA-00-0666 (2000). (pdf)

O. Soto and R. Löhner - CFD Shape Optimization Using an Incomplete-Gradient Adjoint Approach; Proc. ECCOMAS 2000, Barcelona, September (2000). (psgz)

O. Soto and R. Löhner - General Methodologies for Incompressible Flow Design Problems; AIAA-01-1061 (2001). (pdf)

O. Soto and R. Löhner - CFD Shape Optimization Using an Incomplete-Gradient Adjoint Formulation; Int.J.Num.Meth.Eng. In Press. (2001).

O. Soto, R. Löhner and C. Yang - A Stabilized Pseudo-Shell Approach for Surface Parametrization in CFD Design Problems; Comm.Num.Meth.Eng. Submitted (2001). (pdf)

O. Soto and R. Löhner - CFD Shape Optimization Using an Incomplete-Gradient Adjoint Formulation; Int.J. Num. Meth. Eng. 51, 735-753 (2001).

O. Soto and R. Löhner - A Mixed Adjoint Formulation for Incompressible RANS Problems; AIAA-02-0451 (2002). (pdf)

O. Soto, R. Löhner and C. Yang - A Stabilized Pseudo-Shell Approach for Surface Parametrization in CFD Design Problems; Comm. Num. Meth. Eng. 18, 4, 251-258 (2002).

R. Löhner, O. Soto and Chi Yang - An Adjoint-Based Design Methodology for CFD Optimization Problems; AIAA-03-0299 (2003). (pdf)

O. Soto and R. Löhner - On the Computation of Flow Sensitivities From Boundary Integrals; AIAA-04-0112 (2004). (pdf)

O. Soto, R. Löhner and Chi Yang - An Adjoint-Based Design Methodology for CFD Problems; Int. J. Num. Meth. Heat and Fluid Flow 14, 6,734-759 (2004).

C. Yang and R. Löhner - H2O: Hierarchical Hydrodynamic Optimization; paper presented at the 25th Symp. on Naval Hydrodynamics, St. John's, Newfoundland and Labrador, Canada, August (2004).

R. Löhner - Blast Mitigation: A Co-Evolutionary Approach; paper presented at the Built Infrastructure Security Workshop (BIS'2004), Arlington, VA, October (2004).

F. Togashi, R. Löhner, J.D. Baum, H. Luo and S. Jeong - Comparison of Search Algorithms for Assessing Airblast Effects; AIAA-05-4985 (2005).

R. Löhner, F. Togashi and J.D. Baum - Finite Element Approximation of Complex Functions for Spatial Optimization and Search; Comm.Num.Meth.Eng.22, 823-830 (2006).

T. Tsuga, R. Löhner and F. Togashi - Multi-Objective Assessment of Blast Damage; Proc. MABS-20 Conf., Oslo, Norway, September (2008).

A. Stück, F. Camelli and R. Löhner - Adjoint-Based Design of Shock Mitigation Devices; AIAA-09-3801 (2009).

A. Stück, F. Camelli and R. Löhner - Adjoint-Based Design of Passive and Active Shock Mitigation Devices; AIAA-10-1430 (2010).

A. Stück, F. Camelli and R. Löhner - Adjoint-Based Design of Shock Mitigation Devices; Int. J. Num. Meth. Fluids 64, 443-472 (2010).

R. Löhner, F.F. Camelli and Arthur Stüuck - Adjoint-Based Design of Passive Shock Mitigation Devices; Proc. MABS-21 Conf., Jerusalem, Israel, October (2010).

**Parallel and/or High Performance Computing**

R. Löhner, R. Ramamurti and D. Martin - A Parallelizable Load Balancing Algorithm; AIAA-93-0061 (1993).

R. Ramamurti and R. Löhner - Simulation of Flow Past Complex Geometries Using a Parallel Implicit Incompressible Flow Solver; pp. 1049,1050 in Proc.11th AIAA CFD Conf., Orlando, FL, July (1993).

R. Löhner - Edges, Stars, Superedges and Chains; Comp.Meth.Appl.Mech.Eng.111, 255-263 (1994).

R. Löhner, A. Shostko and R. Ramamurti - Parallel Unstructured Grid Generation and Implicit Flow Solvers; paper presented at the Parallel CFD'94 Conf. , Kyoto, Japan, May (1994).

A. Shostko and R. Löhner - Three-Dimensional Parallel Unstructured Grid Generation; Int.J.Num.Meth.Eng.38, 905-925 (1995).

R. Löhner - Robust, Vectorized Search Algorithms for Interpolation on Unstructured Grids; J.Comp.Phys.118, 380-387 (1995).

A. Shostko and R. Löhner - Parallel 3-D H-Refinement; AIAA-95-1662-CP (1995).

R. Löhner and R. Ramamurti - A Load Balancing Algorithm for Unstructured Grids; Comp. Fluid Dyn. 5, 39-58 (1995).

R. Löhner - Renumbering Strategies for Unstructured-Grid Solvers Operating on Shared-Memory, Cache-Based Parallel Machines; AIAA97-2045-CP (1997).

J. Tuszynski and R. Löhner - Parallelizing the Construction of Indirect Access Arrays for Shared-Memory Machines; Comm. Appl. Num. Meth. Eng. 14, 773-781 (1998).

R. Löhner - Renumbering Strategies for Unstructured-Grid Solvers Operating on Shared-Memory, Cache-Based Parallel Machines; Comp. Meth. Appl. Mech. Eng. 163, 95-109 (1998).

R. Löhner - A Parallel Advancing Front Grid Generation Scheme; Int.J. Num. Meth. Eng. 51, 663-678 (2001).

R. Löhner and M. Galle - Minimization of Indirect Addressing for Edge-Based Field Solvers; Comm. Num. Meth. Eng. 18, 335-343 (2002).

R. Löhner and M. Galle - Minimization of Indirect Addressing for Edge-Based Field Solvers; AIAA-02-0967 (2002). (pdf)

R. Löhner - Moore's Law and the Diminishing Importance of Parallel Computing; Expressions of the IACM 13, 6-8 (2003).

H. Luo, J.D. Baum and R. Löhner - Parallel Unstructured Grid GMRES+LU-SGS Method for Turbulent Flows; AIAA-03-0273 (2003). (pdf)

R. Löhner, C. Yang, J.R. Cebral, F.F.Camelli, F. Togashi, J.D. Baum, H. Luo, E.L. Mestreau and O.A. Soto - Moore's Law, the Life Cycle of Scientific Computing Codes and the Dimininshing Importance of Parallel Computing; Parallel CFD05, College Park, MD, May (2005).

F. Camelli, R. Löhner and E.L. Mestreau - Timings of an Unstructured-Grid CFD Code on Common Hardware Platforms and Compilers; AIAA-07-1107 (2007). (pdf)

F. Camelli, R. Löhner, J. Cebral and E.L. Mestreau - Timings of an Unstructured-Grid CFD Code on Common Hardware Platforms and Compilers; AIAA-08-0477 [Invited] (2008).

A. Corrigan, F. Camelli, R. Löhner and J. Wallin - Running Unstructured Grid Based CFD Solvers on Modern Graphics Hardware; AIAA-09-4001 (2009).

A. Corrigan, F. Camelli and R. Löhner - Porting Of An Edge-Based CFD Solver to GPUs; AIAA-10-0523 (2010).

R. Löhner - Cache-Efficient Renumbering for Vectorization; Int. J. Num. Meth. Biomed. Eng. 26, 5, 628-636 (2010).

A. Corrigan, F. Camelli, R. Löhner and F. Mut - Porting of FEFLO to GPUs; Proc. ECCOMAS CFD 2010 Conf. Lisbon, Portugal, June 14-17 (2010).

A. Corrigan and R. Löhner - Porting Large Fortran Codebases to GPUs; Proc. NVIDIA GPU Technology Conf. 2010, San Jose, CA, September 20-23 (2010).

A. Corrigan and R. Löhner - Porting of FEFLO to Multi-GPU Clusters; AIAA-11-0948 (2011).

R. Löhner, F. Mut and F.F. Camelli - Timings OF FEFLO on the SGI-ICE Machines; AIAA-11-1064 (2011).

A. Corrigan, F.F. Camelli, R. Löhner and J. Wallin - Running Unstructured Grid Based CFD Solvers on Modern Graphics Hardware; Int. J. Num. Meth. Fluids 66, 221-229 (2011).

R. Löhner and A. Corrigan - Semi-Automatic Porting if a General Fortran CFD Code to GPUs: The Difficult Modules; AIAA-11-3219 (2011).

R. Löhner, F.F. Camelli, J.D. Baum and A. Corrigan - Large-Scale Blast Calculations on GPU Clusters; AIAA-12-0565 (2012).

**Visualization**

J.R. Cebral and R. Löhner- Interactive On-Line Visualization and Collaboration for Parallel Unstructured Multidisciplinary Applications; AIAA-98-0077 (1998).

J. Cebral and R. Löhner - Advances in Visualization: Distribution and Collaboration; AIAA-99-0693 (1999).

J. Cebral and R. Löhner - Flow Visualization on Unstructured Grids Using Geometrical Cuts, Vortex Detection and Shock Surfaces; AIAA-01-0915 (2001). (pdf)

**Some Real-Life Applications**

N.K. Winsor, S.A. Goldstein and R. Löhner - Numerical Modelling of Interior Ballistics from Initiation Through Projectile Launch; Proc. 42nd Aeroballistic Range Association Meeting, Adelaide, Australia, October 22-25, (1991).

J.D. Baum and R. Löhner - Numerical Simulation of Shock Interaction with a Modern Main Battlefield Tank; AIAA-91-1666 (1991).

J.D. Baum and R. Löhner - Numerical Simulation of Passive Shock Deflector Using an Adaptive Finite Element Scheme on Unstructured Grids; AIAA-92-0448 (1992).

R. Ramamurti, K. Kailasanath and R. Löhner - Numerical Simulation of Unsteady Flow in a Nozzle; pp. 153-163 in CPIA Publication 580, Vol. I, Chemical Propulsion Information Agency, 1992 JANNAF Propulsion Meeting (1992).

R. Löhner and E. Mestreau - Solving Complex Industrial Problems Using Unstructured Grids; pp. 24.1-24.14 in Proc. First World Conf. Appl. Computational Fluid Dynamics (B. Löffler and A. Müller eds.), Basel World User Days CFD 1992, Basel, May (1992).

J.D. Baum and R. Löhner - Numerical Simulation of Pilot/Seat Ejection from an F-16; AIAA-93-0783 (1993).

E. Mestreau, R. Löhner and S. Aita - TGV Tunnel-Entry Simulations Using a Finite Element Code with Automatic Remeshing; AIAA-93-0890 (1993).

H. Luo, J.D. Baum, R. Löhner - Numerical Solution of the Euler Equations for Complex Aerodynamic Configurations Using An Edge-Based Finite Element Scheme; AIAA-93-2933 (1993).

J.D. Baum. H. Luo and R. Löhner - Numerical Simulation of a Blast Inside a Boeing 747; AIAA-93-3091 (1993).

J.D. Baum, H. Luo and R. Löhner - Numerical Simulation of a Blast Within a Multi-Room Shelter; pp. 451-463 in Proc. MABS-13 Conf. The Hague, Netherlands, September (1993).

R. Ramamurti, R. Löhner and W. Sandberg - Evaluation of a Three-Dimensional Finite Element Incompressible Flow Solver; AIAA-94-0756 (1994).

J.D. Baum and R. Löhner - Numerical Simulation of Shock-Box Interaction Using an Adaptive Finite Element Scheme; AIAA J.32, 4, 682-692 (1994).

R. Löhner, E. Haug, P. deKermel, J.-L. Matilla and E. Mestreau - New Advances in Fluid-Structure Interaction Using Adaptive Unstructured Grids and Automatic Mesh Generation; pp. 24.1-24.14 in Proc. Second World Conf. Appl. Computational Fluid Dynamics (B. Löffler and A. Müller eds.), Basel World User Days CFD 1994, Basel, May (1994).

J.D. Baum, H. Luo and R. Löhner - Numerical Simulation of Blast in the World Trade Center; AIAA-95-0085 (1995).

R. Ramamurti, W. Sandberg and R. Löhner - Simulation of Torpedo Launch Using a 3-D Incompressible Finite Element Solver and Adaptive Remeshing; AIAA-95-0086 (1995).

J.D. Baum, H. Luo and R. Löhner - Validation of a New ALE, Adaptive Unstructured Moving Body Methodology for Multi-Store Ejection Simulations; AIAA-95-1792 (1995).

J.D. Baum, H. Luo and R. Löhner - Numerical Simulations of Fluid-Structure Interactions; Proc. 20th Int.Symp. on Shock Waves, Pasadena, CA, July (1995).

J.D. Baum, H. Luo and R. Löhner, C. Yang, D. Pelessone and C. Charman - A Coupled Fluid/Structure Modeling of Shock Interaction with a Truck; AIAA-96-0795 (1996).

E. Mestreau and R. Löhner - Airbag Simulation Using Fluid/Structure Coupling; AIAA96-0798 (1996).

J.D. Baum, H. Luo, R. Löhner, E. Goldberg and A. Feldhun - Application of Unstructured Adaptive Moving Body Methodology to the Simulation of Fuel Tank Separation From an F-16 C/D Fighter; AIAA-97-0166 (1997).

Chi Yang and R. Löhner - Numerical Simulation of a Maneuvering Missile Using a Loose Fluid-Structure Coupling Algorithm; AIAA-97-0408 (1997).

J.D. Baum, R. Löhner, T.J. Marquette and H. Luo - Numerical Simulation of Aircraft Canopy Trajectory; AIAA97-1885 (1997).

J. Katz, H. Luo, E. Mestreau, J.D. Baum and R. Löhner - Viscous-Flow Solution of an Open-Wheel Race Car; SAE 983041 (1998).

R. Ramamurti, W. Sandberg and R. Löhner - Simulation of Flow About Flapping Airfoils Using a Finite Element Incompressible Flow Solver; AIAA-99-0652 (1999).

R. Ramamurti, W.C. Sandberg and R. Löhner - Simulation of the Dynamics of Micro Air Vehicles; AIAA-00-0896 (2000). (pdf)

J.R. Cebral, R. Löhner and J. Burgess - Computer Simulation of Cerebral Artery Clipping: Relevance to Aneurysm Neuro-Surgery Planning; Proc. ECCOMAS 2000, Barcelona, September (2000). (pdf)

R. Ramamurti, W.C. Sandberg and R. Löhner - Simulation of Flow About Flapping Airfoils Using a Finite Element Incompressible Flow Solver; AIAA J. 39, 2, 253-260 (2001).

R. Löhner, J. Cebral, O. Soto, P. Yim and J. Burgess - CFD in Medicine and Life Sciences - Applications on the Living Human Being; Proc. 5th World Conf. on Applied Fluid Dynamics, Freiburg i.Br., Germany, July (2001). (pdf)

J.R. Cebral, R. Löhner, O. Soto and P.J. Yim - On the Modeling of Carotid Artery Blood Flow From Magnetic Resonance Images; Proc. ASME-BED Bioengineering Conf. , Vol. 50, June 27-July 1 (2001).

J.R. Cebral, R. Löhner and P. Yim - Image-Based Blood Flow Modeling as a Predictive Tool for Planning Medical Interventions; paper presented at ECCOMAS CFD 2001 Conf., Swansea, Wales, September (2000).

S.R. Hanna, S. Tehranian, B. Carissimo, R.W. Macdonald and R. Löhner - Comparisons of Model Simulations with Observations of Mean Flow and Turbulence Within Simple Obstacle Arrays; Atmospheric Environment 36, 5067-5079 (2002).

R. Ramamurti, W.C. Sandberg, R. Löhner, J.A. Walker and M.W. Westneat - Fluid Dynamics of Flapping Aquatic Flight in the Bird Wrasse: Three-Dimensional Unsteady Computations with Fin Deformation; J. Exp. Biology 205, 2997-3008 (2002).

F. Camelli, O. Soto, R. Löhner, W. Sandberg and R. Ramamurti - Topside LPD17 Flow and Temperature Study with an Implicit monolithic Scheme; AIAA-03-0969 (2003). (pdf)

R. Ramamurti, W.C. Sandberg and R. Löhner - The Influence of Fin Rigidity and Gusts on the Force Production in Fishes and Insects: A Computational Study; AIAA-04-0404 (2004). (pdf)

R. Löhner, J. Cebral, O. Soto, P. Yim and J.E. Burgess - Applications of Patient-Specific CFD in Medicine and Life Sciences; Int. J. Num. Meth. Fluids 43, 637-650 (2003).

J.D. Baum, E. Mestreau, H. Luo, R. Löhner, D. Pelessone, M.E. Giltrud and J.K. Gran - Modeling of Near-Field Blast Wave Evolution; AIAA-06-0191 (2006). (pdf)

J.D. Baum, E.L. Mestreau, H. Luo, R. Löhner and D. Pelessone - Parallel Coupled CFD and CSD Modelling of Steel Tower Response to Blast Loading; pp. 288-291 in Proc. Parallel CFD'06 Pusan, Korea (2006).

J.D. Baum and R. Löhner - Coupled CFD/CSD/DPM Modeling of a Cased Charge Detonation and Fragmentation; Proc. MABS-19 Conf. Calgary, Canada, October (2006).

R. Tilch, A. Tabbal, M. Zhu, F. Dekker and R. Löhner - Combination of Body-Fitted and Embedded Grids for External Vehicle Aerodynamics; AIAA-07-1300 (2007). (pdf)

D.L. Rice, J.D. Baum, F. Togashi, R. Löhner and A. Amini - First-Principles Blast Diffraction Simulations on a Notebook: Accuracy, Resolution and Turn-Around Issues; Proc. MABS-20 Conf., Oslo, Norway, September (2008).

D. Frank, R. Löhner, F. Camelli, R. Frank and A. Amini - Comparison of a Fast-Running Engineering Model and Coarse Mesh 3-D Euler Predictions for Airblast in an Urban Environment; Proc. MABS-20 Conf., Oslo, Norway, September (2008).

F. Togashi, J.D. Baum, E. Mestreau, R. Löhner, J.L. Davis, B. Steed and D. Sunshine; Numerical Modeling of C-4 Long-Term Blast Wave Evolution in Confined Rooms; Proc. MABS-20 Conf., Oslo, Norway, September (2008).

J. Liu, K. Kailasanath, R. Ramamurti, D. Munday, E. Gutmark and R. Löhner - Large-Eddy Simulation of a Supersonic Jet and its Near-Field Acoustic Properties: Methodology and Validation; AIAA-09-0500 (2009).

F. Togashi, J.D. Baum, E. Mestreau, R. Löhner, and D. Sunshine; Numerical Modeling of Long-Duration Blast Wave Evolution in Confined Facilities; AIAA-09-1531 (2009).

J. Liu, K. Kailasanath, R. Ramamurti, D. Munday, E. Gutmark and R. Löhner - Large-Eddy Simulations of a Supersonic Jet and Its Near-Field Acoustic Properties; AIAA J. 47, 8, 1849-1864 (2009).

R. Löhner and J.D. Baum - An Assessment of Architectually Appealing, Semi-Open Shock Mitigation Devices; Proc. MABS-21 Conf., Jerusalem, Israel, October (2010).

**Classics in CFD**

R. Löhner, K. Morgan, J. Peraire and O.C. Zienkiewicz - Finite Element Methods for High Speed Flows; AIAA-85-1531-CP (1985).

This paper put Finite Element Methods for CFD on the map

R. Löhner - An Adaptive Finite Element Scheme for Transient Problems in CFD; Comp.Meth.Appl.Mech.Eng. 61, 323-338 (1987).

First efficient FEM use of 2-D adaptive H-refinement for highly transient problems

Full vectorization

Basis of production codes FEFLO27, FEFLO28, FEFLO64

R. Löhner, K. Morgan, J. Peraire and M. Vahdati - Finite Element Flux-Corrected Transport (FEM-FCT) for the Euler and Navier-Stokes Equations; Int.J.Num.Meth.Fluids 7, 1093-1109 (1987).

The FCT paper for FEMs/unstructured grids

Basis of production codes FEFLO27, FEFLO28, FEFLO44, FEFLO64, FEFLO74, FEFLO96

R. Löhner - Some Useful Data Structures for the Generation of Unstructured Grids; Comm.Appl.Num.Meth. 4, 123-135 (1988).

First demonstration of fast grid generation with the advancing front method

R. Löhner and P. Parikh - Three-Dimensional Grid Generation by the Advancing Front Method; Int.J.Num.Meth. Fluids 8, 1135-1149 (1988).

The 3-D advancing front grid generation paper

Basis of production codes FRGEN3D and VGRID

R. Löhner - An Adaptive Finite Element Solver for Transient Problems with Moving Bodies; Comp.Struct. 30, 303-317 (1988).

First demonstration of 2-D adaptive remeshing for transient problems

R. Löhner - Adaptive H-Refinement on 3-D Unstructured Grids for Transient Problems; AIAA-89-0365 (1989).

R. Löhner and J.D. Baum - Adaptive H-Refinement on 3-D Unstructured Grids for Transient Problems; Int.J.Num.Meth.Fluids 14, 1407-1419 (1992).

First efficient FEM use of 3-D adaptive H-refinement for highly transient problems

Full vectorization/autotasking efficiency

Basis of production codes FEFLO74, FEFLO96

R. Löhner, P. Parikh and C. Gumbert - Some Algorithmic Problems of Plotting Codes for Unstructured Grids; AIAA-89-1981-CP (1989).

First demonstration of fast plotting package for large 3-D unstructured grids

Basis of plotting codes FEPLOT, FEPOST, VPLOT and NASA's FAST

R. Löhner and J. Ambrosiano - A Vectorized Particle Tracer for Unstructured Grids; J.Comp.Phys. 91, 1, 22-31 (1990).

First demonstration of fast tracking for unstructured-grid PIC codes

R. Löhner - Three-Dimensional Fluid-Structure Interaction Using a Finite Element Solver and Adaptive Remeshing; Computer Systems in Engineering 1, 2-4, 257-272 (1990).

First demonstration of 3-D adaptive remeshing for transient problems

Basis of production codes FEFLO52, FEFLO54, FEFLO96

J.D. Baum and R. Löhner - Numerical Simulation of Shock Interaction with a Modern Main Battlefield Tank; AIAA-91-1666 (1991).

Most complex 3-D transient geometry at the time

First run to demonstrate the enormous usefulness of adaptivity for 3-D transient problems

First unstructured grid run in CFD to approach 2 Million elements

J.D. Baum. H. Luo and R. Löhner - Numerical Simulation of a Blast Inside a Boeing 747; AIAA-93-3091 (1993).

Most complex 3-D transient geometry at the time

First unstructured grid run in CFD to approach 8 Million elements

R. Löhner, J. Camberos and M. Merriam - Parallel Unstructured Grid Generation; Comp.Meth.Appl. Mech.Eng. 95, 343-357 (1992).

A. Shostko and R. Löhner - Three-Dimensional Parallel Unstructured Grid Generation; Int.J.Num.Meth.Eng. 38, 905-925 (1995).

First 2-D and 3-D parallel unstructured grid generators

R. deFainchtein, S.T. Zalesak, R. Löhner and D.S. Spicer - Finite Element Simulation of a Turbulent MHD System: Comparison to a Pseudo-Spectral Simulation; Comp.Phys.Comm. 86, 25-39 (1995).

First real-life comparison of spectral and FEM codes for turbulent flows

J.D. Baum, H. Luo and R. Löhner - Numerical Simulation of Blast in the World Trade Center; AIAA-95-0085 (1995).

Most complex 3-D transient geometry at the time

First unstructured grid run in CFD to approach 20 Million elements

J.D. Baum, H. Luo and R. Löhner, C. Yang, D. Pelessone and C. Charman - A Coupled Fluid/Structure Modeling of Shock Interaction with a Truck; AIAA-96-0795 (1996).

Most complex real-life 3-D fluid-structure problem at the time

H. Luo, J.D. Baum and R. Löhner - A Fast, Matrix-Free Implicit Method for Compressible Flows on Unstructured Grids; J. Comp. Phys. 146, 664-690 (1998).

The combination of GMRES (as core solver) and LU-SGS (as preconditioner) produced a very fast (parallel, vector) and robust (RANS) solver

J.D. Baum, H. Luo and R. Löhner - The Numerical Simulation of Strongly Unsteady Flows With Hundreds of Moving Bodies; AIAA-98-0788 (1998).

Never before had there been a simulation of a flowfield interacting with over 500 free-flying, contacting bodies in 3D (and comparison to experimental data)

R. Löhner, C. Yang and E. Onate - Viscous Free Surface Hydrodynamics Using Unstructured Grids; Proc. 22nd Symp. Naval Hydrodynamics Washington, D.C., August (1998).

First detailed EULER/RANS flowfield around an armada of ships

R. Löhner and E. Onate - An Advancing Point Grid Generation Technique; Comm. Num. Meth. Eng. 14, 1097-1108 (1998).

First general point generation technique

R. Löhner, C. Sacco, E. Onate and S. Idelsohn - A Finite Point Method for Compressible Flow; Int. J. Num. Meth. Eng. 53, 1765-1779 (2002).

First general FPM code for compressible code, combining: Delaunay and approximation-matrix based local cloud generation, Riemann solvers, limiters, edge-based data structures, shared-memory parallelization

R. Löhner and M. Galle - Minimization of Indirect Addressing for Edge-Based Field Solvers; AIAA-02-0967 (2002).

And they said it was impossible...

R. Löhner - Moore's Law and the Diminishing Importance of Parallel Computing; Expressions of the IACM 13, 6-8 (2003).

As scientists, we are called to describe impartially what we see

O. Soto and R. Löhner - On the Computation of Flow Sensitivities From Boundary Integrals; AIAA-04-0112 (2004). (pdf)

If the cost function is defined on the boundary, and only the boundary moves, why is the domain required ?

Löhner, J.D. Baum, E. Mestreau, D. Sharov, C. Charman and D. Pelessone - Adaptive Embedded Unstructured Grid Methods; Int. J. Num. Meth. Eng. 60, 641-660 (2004).

A key idea, born in desperation (like so many), opening the way to simple embedded methods, which are now being used extensively in many fields

A. Loseille and R. Löhner - Anisotropic Adaptive Simulations in Aerodynamics; AIAA-10-0169 (2010).

First CFD run to compute accurately the sonic boom for an airplane flying at 11km height all the way to the ground; key elements: 3-D Euler, adaptation via local mesh modification

A. Corrigan and R. Löhner - Porting of FEFLO to Multi-GPU Clusters; AIAA-11-0948 (2011).

R. Löhner and A. Corrigan - Semi-Automatic Porting if a General Fortran CFD Code to GPUs: The Difficult Modules; AIAA-11-3219 (2011).

First large-scale production CFD code (with more than a dozen different solvers, hundreds of physics modules and more than a million lines of code) to run completely and efficiently on GPUs; key technological breakthrough: Python-based Fortran to CUDA translator

**Books**

R. Löhner - Applied CFD Techniques; J. Wiley & Sons (2001).

D. Kuzmin, R. Löhner and S. Turek (eds.) - Flux- Corrected Transport; Springer (2005).

R. Löhner - Applied CFD Techniques; Second Edition; J. Wiley & Sons (2008). (link)

P. Nithiarasu, R. Löhner and R. van Loon (eds.) - Proc. 1st Int. Conf. Computational and Mathematical Biomedical Engineering , Swansea, UK, June 29 - July 1 (2009).

P. Nithiarasu, R. Löhner, R. van Loon and I. Sazonov (eds.) - Proc. 2nd Int. Conf. Computational and Mathematical Biomedical Engineering , Fairfax, VA, March 29 - April 1 (2011).

**Research Channel video** of **Rainald Lohner Vision Series Lecture**, George Mason University 2007.

Rainald Lohner, professor of computational sciences at George Mason University, examines computational sciences, which has now become the third pillar of the empirical sciences. Professor Lohner discusses the reasons for these developments and provides an outlook for the future. Computational sciences have greatly impacted how our society gathers and produces knowledge, yet the new form of data acquisition that is emerging is bringing about wider philosophical implications and changing the way we perceive the world.

[youtube]http://youtu.be/GGVE93PHyG4[/youtube]